URL:
<https://savannah.gnu.org/bugs/?64911>
Summary: Support ACPI for OpenBSD EFI boot
Group: GNU GRUB
Submitter: yuichiro
Submitted: Mon 20 Nov 2023 03:31:06 AM UTC
Category: Booting
Severity: Major
Priority: 5 - Normal
Item Group: Feature Request
Status: None
Privacy: Public
Assigned to: None
Originator Name:
Originator Email:
Open/Closed: Open
Release: 2.02
Release:
Discussion Lock: Any
Reproducibility: Every Time
Planned Release: None
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Follow-up Comments:
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Date: Mon 20 Nov 2023 03:31:06 AM UTC By: Yuichiro Naito <yuichiro>
When I booted OpenBSD from Grub2, the ACPI power-off function
didn’t work. It just quit without the shutdown sequence
when I pushed the power button of my PC.
In my investigation, the OpenBSD kernel requires the ACPI table pointer
in the boot argument. It is a member of the “bios_efiinfo_t” structure.
I wrote a patch to pass the “bios_efiinfo_t” structure which members
are filled in the same way as the OpenBSD boot loader. It works for
the OpenBSD 7.4 kernel.
I will write down what I see to fill the “bios_efiinfo_t” members.
* config_acpi
https://github.com/openbsd/src/blob/master/sys/arch/amd64/stand/efiboot/efiboot.c#L868-L869
* config_smbios
https://github.com/openbsd/src/blob/master/sys/arch/amd64/stand/efiboot/efiboot.c#L872-L873
* config_esrt
https://github.com/openbsd/src/blob/master/sys/arch/amd64/stand/efiboot/efiboot.c#L876-L877
* mmap_*
https://github.com/openbsd/src/blob/master/sys/arch/amd64/stand/efiboot/efiboot.c#L330-L422
* fb_*
https://github.com/openbsd/src/blob/master/sys/arch/amd64/stand/efiboot/efiboot.c#L928-L955
* system_table
https://github.com/openbsd/src/blob/master/sys/arch/amd64/stand/efiboot/efiboot.c#L961
https://github.com/openbsd/src/blob/master/sys/arch/amd64/stand/efiboot/efiboot.c#L81
I’m a newbie to the GRUB2 project. If my patch violates the coding
style or manners of this project. Please let me know. I will update
my patch.
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File Attachments:
-------------------------------------------------------
Date: Mon 20 Nov 2023 03:31:06 AM UTC Name: openbsd_efiinfo.patch Size:
10KiB By: yuichiro
<http://savannah.gnu.org/bugs/download.php?file_id=55341>
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